UltraPort Serial Adaptors User Guide
Connector box and cable pinouts Page 128
Chapter 3 Cabling information
DB9 Fan-out cableNote
The UltraPort fan-out cables need to be secured or supported in case of
sudden contact or excessive weight on the cables. Please ensure that
adequate caution is taken to avoid possible damage to the UltraPort card or
Host system. This can be accomplished by securing the cables to a rack or to
the back of the server.
DB9 Pin EIA-232 EIA-422 EIA-485
1DCD CTS- NC
2RXD RXD+ RXD+
3TXD TXD- TXD-/RXD-
4DTR TXD+ TXD+/RXD+
5S-GND S-GND S-GND
6DSR RXD- RXD-
7RTS RTS- NC
8CTS CTS+ NC
9RI RTS+ NC
Shell C-GND C-GND C-GND